CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Light and tiny, just the way you like it.
Source Rohit Arun Rao
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
The image depicts a Japanese Edo pattern called "kanoko or 鹿の子" meaning "fawn" which has a fur with small white spots.
Source Yamachem
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
A yellow tiled background... Blurriness, bokeh effect and rectangles pattern in one mix.
Source V. Hartikainen
A version without colours blended together to give a different look.
Source Firkin
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin